Top Risks

• THREAT FEED: extension ID independently confirmed malicious by TPCI chrome-mal-ids — Betsy Мария Янковская Sigma Boy Live Wallpaper [adware] + malext.io malicious_extension_sentry (+2.5, capped).
• NewTab override combined with install+uninstall URL hijack is a monetization shell fingerprint.
• Uninstall and install URL hijacks send UTM-tagged traffic to developer domain on every event.
• innerHTML DOM-XSS sink in calendar.js without explicit CSP creates client-side injection risk.
• No developer name declared; reduces accountability despite verified publisher badge.

Evidence

• newtab_override manifest chrome_url_overrides.newtab set to newtab.html — replaces every new-tab page.
• uninstall_url_hijack crx setUninstallURL targets https://gameograf.com/?p=7144?utm_source=extension&utm_medium=uninstall
• install_url_hijack crx onInstalled opens https://gameograf.com/?p=7144?utm_source=extension&utm_medium=install
• no_developer_name store developer_name is empty; reduces accountability despite verified_publisher flag.
• dom_xss_sink crx js/calendar.js assigns user-controlled variable to innerHTML with no CSP guard.
• no_csp manifest content_security_policy is null; MV3 default applies but no explicit hardening.
• verified_publisher store Developer support@gameograf.com holds verified publisher badge; domain resolves.
• privacy_policy_scoped api Policy fetched; scope_extension=true, data_collection=true, retention=true, third_party_sharing=true.
• threat_feed_membership api Extension ID listed by TPCI chrome-mal-ids — Betsy Мария Янковская Sigma Boy Live Wallpaper [adware] + malext.io malicious_extension_sentry; score 2.86 -> 5.36 (+2.5 cap 2.5).

Permissions Breakdown

• search medium Can read and modify search provider; relevant to NewTab/search-redirect risk.
• alarms low Schedules background tasks; low standalone risk.
• storage low Local data persistence; low risk.
• chrome_url_overrides.newtab medium Replaces new-tab page; primary monetization vector for this category.
• host_permissions: https://api.gameograf.com/* low Scoped to dev-controlled domain only; acceptable for API calls.

Pillar Scores

Bookkeeping